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Science study guide

QuestionAnswer
Newton´s First Law of Motion An object at rest will stay at rest will remain at rest until acted on by a force and a object at motion will stay in motion util acted on by a force.
Newtonś First Law of Motion is also called The Law of Inertia Example: ball constantly rolling down a hill until a force is acted upon it.
Rolling Friction Friction that occurs between surfaces in motion in which one of the surfaces is a wheel, roller, or ball. Ex: Bowling-ball and lane
Static Friction Friction that occurs when the surfaces in contact are at rest (not in motion). Ex: A book resting on a desk
Sliding Friction Friction that occurs when solid surfaces slide over one another. Example-Writing- pencil point and paper
Fluid Friction Friction that occurs when objects mover across or through a fluid. Example- Swimming- swimmer´s swim against the water
Newton´s Second Law of Motion The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.
Newtons Second Law of Motion is also called and is known for The Law of Force and Acceleration Force= mass x acceleration
Air Resistance is an example of fluid friction caused by the particles that make up air. Example: Skydiving- parachute is slowed down by air resistance.
Newton´s Third Law of Motion For every action there is an equal and opposite reaction. Example: Rocket launching off of a launch pad.
Newton´s Third Law of Motion is also known as The law of action and reaction
Calculation for spped Speed equals distance divided by time speed=distance/time
Calculation for velocity velocity equals displacement divided by time
Calculation for acceleration acceleration equals force divided by mass a = F/m
calculation for momentum momentum equals mass times velocity p=m/v
calculation for elastic Before After p1 + p2 = p1 + p2 m1v1 + m2v2 = m1v1 + m2v2
calculation for Inelastic p1 + p2 = (m1 + m2)V m1v1 + m2v2 = (m1+m2) Vfinal
Calculate Net Force Net Force = Mass x Acceleration F = m x a
Terminal Velocity maximum velocity reached by a falling object
Acceleration due to gravity In the absence of air resistance, all falling objects have the same acceleration. On Earth: g = 9.8 m/s ²
Created by: kiyara.thomas
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